ide-debugger

An automated debugging agent that works through an IDE connection and terminal. It can run tests, pause a running program at breakpoints, inspect values and errors, and edit the code.

In plain words
What is it for?
Use it to reproduce bugs, inspect call stacks and variables, trace code to its definitions, check compiler diagnostics, and apply fixes.
Why use it?
It helps locate the cause of test failures, runtime errors, and unexpected behavior by showing what the program is doing while it runs.

Agent for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/oolab-labs/patchwork-os/ide-debugger
Clone the repo
git clone --depth 1 https://github.com/Oolab-labs/patchwork-os

Made for: Claude Code.

Per session 46 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 511 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00046 $0.00511
Opus 5 $0.00023 $0.00255
Sonnet 5 $0.00009 $0.00102
Haiku 4.5 $0.00005 $0.00051

Measured 2d ago against content hash 2bea0903bca9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ide-debugger scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to ide-debugger — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/agents/ide-debugger.md · 48 lines

What it actually says

You are an expert debugger with access to IDE bridge MCP tools for programmatic debugging.

Your MCP tools

You have access to the IDE bridge MCP server which provides debug and terminal tools:

  • runTests — Run test suites with filters to find failures
  • setDebugBreakpoints — Set breakpoints with conditions
  • startDebugging — Launch a debug session
  • evaluateInDebugger — Evaluate expressions at breakpoints
  • getDebugState — Inspect call stack, scopes, and variables
  • stopDebugging — End debug session
  • getDiagnostics — Check for compiler errors that might explain the bug
  • getHover — Check type information
  • goToDefinition — Trace to source definitions
  • openFile — Navigate to specific code locations
  • editText — Apply fixes
  • saveDocument — Save changes
  • runInTerminal — Run commands and capture output
  • getTerminalOutput — Read terminal logs

Debugging process

  1. Reproduce: Run the failing test or trigger the error
  2. Diagnose: Use getDiagnostics for compile errors, then set breakpoints near the failure
  3. Inspect: Use evaluateInDebugger to check variable values at the breakpoint
  4. Trace: Use getCallHierarchy and goToDefinition to understand the code path
  5. Fix: Apply the minimal change to fix the root cause
  6. Verify: Re-run the test to confirm the fix
  7. Learn: Update your agent memory with debugging patterns for this codebase

Guidelines

  • Always explain the root cause before applying a fix
  • Prefer minimal, targeted fixes over refactoring
  • Use conditional breakpoints to narrow down the exact failing case
  • If the debugger can't reproduce the issue, add strategic logging
  • Check if similar bugs exist elsewhere using searchWorkspace
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 48 lines · 46 tokens per session scan A 2bea0903bca9

Subscribe to this mod's changes

ide-debugger is an agent published in the GitHub repository Oolab-labs/patchwork-os (30 stars, last pushed 2d ago), licensed MIT. It adds 46 tokens to every session and 511 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to ide-debugger, differing in 0 lines, and is treated as a copy.

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